Results 61 to 70 of about 4,978 (186)

Betulinic Acid Enema Alleviates Colitis by Targeting Vitamin D Receptor to Protect the Intestinal Mucosal Barrier and Modulate Mucosa‐Associated Microbiota

Phytotherapy Research, EarlyView.
ABSTRACT Ulcerative colitis (UC) is a chronic inflammatory disease of the colon with limited effectiveness and safety of current drug therapies. Betulinic acid (BA) is a naturally occurring pentacyclic triterpenoid present in traditional Chinese medicines used clinically as retention enemas for UC, but its direct effects and mechanisms remain unclear ...
Lina Dong, Yuanxia Gao, Qian Li, Guangxin Chen, Dong Yang, Liping Zhao, Xiaojing Liu, Shumei Lin   +7 more
wiley   +1 more source

Hyperspectral tomographic diffractive microscopy: Development and applications

Journal of Microscopy, EarlyView.
Abstract Tomographic Diffractive Microscopy (TDM) provides label‐free three‐dimensional imaging of transparent samples with resolution surpassing confocal limits. At IRIMAS, successive instrumental developments since 2009 have enhanced TDM capabilities through transmission, reflection, isotropic, polarisation‐sensitive, and dual‐view configurations ...
Leonardo Pestana Legori, Carlos Alberto Chacón Ávila, Matthieu Debailleul, Nicolas Verrier, Olivier Haeberlé   +4 more
wiley   +1 more source

Introduction to very-long-baseline interferometry [PDF]

Proceedings of the IEEE, 1973
Long-baseline interferometry achieves high resolution by using two or more widely separated radio telescopes and recording video signals on magnetic tapes, which are later brought together and cross-correlated. This paper contains discussions of the coherence and timing requirements and of calibration procedures.
openaire   +2 more sources

Practical approach to extending baselines of telescopes using continuous-variable quantum information

New Journal of Physics
Interferometric telescopes are instrumental for the imaging of distant astronomical bodies, but optical loss heavily restricts how far telescopes in an array can be placed from one another, leading to a bottleneck in the resolution that can be achieved ...
Bran Purvis, Randy Lafler, R Nicholas Lanning   +2 more
doaj   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part I Reproducibility of diet inference using different instruments

The Anatomical Record, Volume 309, Issue 9, Page 2442-2454, September 2026.
Abstract Dental microwear texture analysis (DMTA) has become a well‐established method for dietary inference and reconstruction in both extant and extinct mammals and other tetrapods. As the volume of available data continues to grow, researchers could benefit from combining published data from various studies to perform meta‐analyses.
Daniela E. Winkler, Mugino O. Kubo
wiley   +1 more source

Supermassive Black Hole Spin Constraints from Polarimetry in an Equatorial Disk Model

The Astrophysical Journal Letters
The Event Horizon Telescope has released polarized images of the supermassive black holes Messier 87* (M87*) and Sagittarius A* accretion disks. As more images are produced, our understanding of the average polarized emission from near the event horizon ...
Daniel C. M. Palumbo
doaj   +1 more source

Multiplicity of Northern bright O-type stars with optical long baseline interferometry. Results of the pilot survey. [PDF]

Proc Int Astron Union, 2023
Lanthermann C.
europepmc   +1 more source

Improving Digital Mapping of Soil Organic Carbon and Total Nitrogen Through Integration of Sentinel‐1 Backscatter, InSAR Coherence, and Sentinel‐3 OLCI/SLSTR Observations

Land Degradation &Development, Volume 37, Issue 13, Page 9707-9720, 15 August 2026.
ABSTRACT The potential of optical satellites for the spatial prediction of soil organic carbon (SOC) and total nitrogen (STN) has long been recognized. Owing to their balanced spatial–temporal resolution, multisource observational capabilities, and unprecedented availability of free data, Sentinel satellites offer unique opportunities for mapping soil ...
Tao Zhou, Xueting Zheng, Hongmin Zhang, Yajun Geng, Huijie Li, Junming Liu, Tingting Liu, Asim Biswas, Bingcheng Si   +8 more
wiley   +1 more source

Long Baseline Interferometry and Binary Stars [PDF]

International Astronomical Union Colloquium, 1983
AbstractThe observations of α Vir with the Narrabri Stellar Intensity Interferometer demonstrated the potential of long baseline interferometry for the determination of fundamental properties of double-lined spectroscopic binary systems. Since the completion of the programme with the Narrabri instrument the Chatterton Astronomy Department has been ...
openaire   +1 more source

Modeling Targets and Optimal Frequencies for Imaging the Shadows of Nearby Supermassive Black Holes

The Astrophysical Journal
Horizon-scale imaging of supermassive black holes has opened a new avenue for studying strong-field gravity and plasma physics in low-luminosity accretion flows.
J. Cole Faggert, Feryal Özel, Dimitrios Psaltis   +2 more
doaj   +1 more source